Shortly after I posted the message above, I got a "private message" to call Tech Support at 1-887-210-0840. I thought that there was a fix for this, maybe a new driver.
I called. The first time, I was told there was no one to take my call. The second time I got a man who barely spoke English. He just said take the scanner to the service center and hung up.
I don't think it is a hardware problem, for when I connected an old Windows laptop to the scanner, it worked perfectly. There is something wrong between the Scanner and Mac OS Sierra.
Please come up with a fix!